Evidence map›Paper›PMID 30635061›Full record

ArticleEnvironmental health : a global access science source2019

Prenatal exposure to extremely low frequency magnetic field and its impact on fetal growth.

Yanfeng Ren, Jianping Chen, Maohua Miao, De-Kun Li, Hong Liang, Ziliang Wang, Fen Yang, Xiaowei Sun, Wei Yuan

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Environmental health : a global access science source, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 19 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Yanfeng RenDepartment of Health Statistics, School of Public Health and Management, Weifang Medical University, Shandong, China.
Jianping ChenKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China.
Maohua MiaoKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China.
De-Kun LiDivision of Research, Kaiser Foundation Research Institute, Kaiser Permanente, Oakland, California, USA.
Hong LiangKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China.
Ziliang WangKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China.
Fen YangKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China.
Xiaowei SunKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China.
Wei YuanKey Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 779 Old Hu Min Road, Shanghai, 200237, China. yuanwei11@yahoo.com.
Fudan University · CNShanghai Institute of Planned Parenthood Research · CNKaiser Permanente · USWeifang Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveStudies on the effect of prenatal exposure to magnetic field (MF) on fetal growth is inconclusive and subject to some methodological limitations, particularly in measurement of MF exposure. The present study aimed to examine the association between maternal extremely low frequency MF (ELF-MF) exposure during pregnancy and fetal growth in offspring.

methodsA total of 128 pregnant women were recruited at their 3rd trimester and asked to wear an EMDEX Lite meter for 24 h to capture daily ELF-MF exposure. Time-weighted average (TWA), P50, and P75 of personal 24-h measurements were used to evaluate prenatal ELF-MF exposure. The medians of these measurements were used as cut-off points of high and low prenatal ELF-MF exposure. Fetal growth was measured by infant's birth weight, skinfold thickness of triceps, abdomen, and back, and circumference of head, upper arm, and abdomen. These measures were conducted within 24-h after birth. Generalized Linear Model was used to examine the association between maternal ELF-MF level and fetal growth indices after potential confounders were adjusted for.

resultsCompared with girls with lower prenatal ELF-MF exposure, girls with higher exposure had a lower birth weight, thinner skinfold of triceps, abdomen and back, and smaller circumference of head, upper arm and abdomen in all three ELF-MF matrices. The differences were statistically significant for birth weight and most other growth measurements (P < 0.05). These measures had no significant difference between higher and lower prenatal ELF-MF exposure in boys except back skinfold thickness.

conclusionPrenatal exposure to higher ELF-MF levels was associated with decreased fetal growth in girls, but not in boys.

Indexed as

Fetal DevelopmentMagnetic FieldsMaternal ExposureMaternal-Fetal ExchangeAdultBirth WeightEnvironmental MonitoringFemaleHumansInfant, NewbornMalePregnancyPregnancy Trimester, ThirdSex FactorsSkinfold ThicknessCohort studyFetal growthMagnetic fieldPregnancy

Identifiers

PMID30635061
PMCPMC6329146
OpenAlexW2912288780

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.